Which Gas Law Do I Use For This One?

Kiya2010 · Post by **Kiya2010** » Sat Feb 02, 2008 7:23 pm

A sample of carbon dioxide has a pressure of 85.84 kPa at a temperature of 101.2 degC. Assuming that the volume is constant, what will be the pressure when the temperature is -48.5 degC.

sharan · Post by **sharan** » Mon Feb 04, 2008 9:35 pm

Oh This is the case of Gay-lussac law where the volume is fixed and pressure is directly proportional to Temperature. Or you can
P₁/T₁= P₂/T₂

Just Solve it..
Make sure you change the temperature units from celsius to Kelvin since in this law temperature is meaused in kelvins and it makes a huge difference and you can convert it with a factor of
Kelvin = 273.15 + Celsius

I hope that helpss..

-Sharan